Hydrological survey water source sampling device

The invention belongs to the technical field of water resource sampling, and particularly discloses a hydrological survey water source sampling device which comprises a floating plate, a rail rod is vertically and fixedly arranged on the lower side of the floating plate, a shear type telescopic distance adjusting mechanism is arranged on the rail rod, and negative pressure static water taking mechanisms are vertically arranged on one side of the shear type telescopic distance adjusting mechanism in an array mode. Spiral air pipes are arranged on one sides of the negative-pressure static water taking mechanisms, the negative-pressure static water taking mechanisms communicate with the spiral air pipes, the upper ends of the spiral air pipes penetrate through the floating plate and then communicate with exhaust hoses, air valves are arranged at the positions, close to the tail ends, of the exhaust hoses, lifting ropes are fixedly arranged on the edge of the upper side of the floating plate in a circumferential